3851-64-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3851-64-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,5 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3851-64:
(6*3)+(5*8)+(4*5)+(3*1)+(2*6)+(1*4)=97
97 % 10 = 7
So 3851-64-7 is a valid CAS Registry Number.
3851-64-7Relevant articles and documents
LADDER POLYMERS WITH INTRINSIC MICROPOROSITY AND PROCESS FOR PRODUCTION THEREOF
-
Page/Page column 15-16, (2010/05/14)
A polymer of formula (I): where: n is an integer from 10 to 5,000; m is an integer from 10 to 5,000; Ar1 and Ar3 are the same or different and are residues derived from a tetra-hydroxy aromatic monomer, the tetra-hydroxy aromatic monomer being wherein R i